It's the season for student teachers at Mai High.  Keima's class gets Miss Nagase, a cheerful pro wrestling fan who has great hopes and dreams about becoming a teacher.
However, her attention is immediately drawn to a problem child who plays games during class (...Keima, of course).
The other teachers have already given up on Keima's attitude, but Jun is inspired to save him...
Games are designed conveniently, so you progress
Los juegos están diseñados 
convenientemente para que progreses
Los juegos están diseñados 
convenientemente para que progreses
Jogos são feitos convenientemente,
 então você progride